Hi Arnold,
say your RowKeys are in E:G and your data is in H:K. Write in any cell e.g. =EPMCOPYRANGE("000"[or your report name, it it's not the default one],"TRUE",H7:K7). Then use conditional formatting in H7:K7, e.g. =E7<>"" -> top border formatting.
After the next refresh, you should find the conditional formatting in your data, from first row to last row, in all the columns you defined in the function. You can also use EPMCopyRange for other things like Comments or as an alternative to local members, it is somehow similar to how the old BPC 7.5. reports were built (you wrote the formula in first row and Expansion copied it down) - in BPC10 this copying down is done with EPMCopyRange.
You can also check out this video: http://wiki.sdn.sap.com/wiki/download/attachments/281281278/Input_Comments_Final_2.mp4?version=1&modificationDate=1337087523745
although it's actually about comments and from NW, it still shows how EPMCopyRange works, you can build your reports in MS in exactly the same way.
Yours, Philipp